Family

Loading Family data...

• 15 United States
• 10 France
• 8 Japan
• 7 China
• 5 Korea
• 2 Other

Patent Owner(s)

Patent Owner	Address
KULTHORN KIRBY PUBLIC COMPANY LIMITED	126 SOI CHALONG KRUNG 31 CHALONG KRUNG ROAD KHWAENG LAM PLA THIO KHET LAT KRABANG BANGKOK 10520

International Classification(s)

• F04D:NON-POSITIVE-DISPLACEMENT PUMPS

• 2010 Application Filing Year
• F04D Class
• 786 Applications Filed
• 514 Patents Issued To-Date
• 65.40 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Tolbert,, Jr John W	Bristol, US	12	155
# of filed Patents : 12 Total Citations : 155

Cited Art Landscape

Load Citation

• No Cited Art to Display

Loading Cited Art Landscape...

Patent Citation Ranking

• 1 Citation Count
• F04D Class

• 8.61 % this patent is cited more than
• 12 Age

Forward Cite Landscape

Load Citation

• No Forward Cites to Display

Loading Forward Cite Landscape...

Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge after expiration - Late payment is unavoidable	$700.00	$350.00	$175.00
Surcharge after expiration - Late payment is unintentional	$1,640.00	$820.00	$410.00

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
March 05, 2013	US,8388318,B2   US8388318B2	GRANTED PATENT AS SECOND PUBLICATION
October 07, 2010	US,20100254834,A1   US20100254834A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 8388318

Hermetic crankcase heater

---

Abstract

---

A heater is provided inside a hermetic compressor to heat the fluid in an oil sump of the compressor. The heater can be substantially submerged in the fluid even at low fluid levels. The heater can raise the temperature of the fluid to a predetermined temperature to substantially maintain non-lubricant fluids in a gaseous state and prevent non-lubricant fluids from mixing with the lubricant in the sump. A feed through assembly in the compressor housing is used to supply power to both the compressor motor and the heater.

---

 

---

Description

---

Claims

---

Claims data not available

---

Legal Events

 

• LAPS2021
• STCH2021
• FP2021
• FEPP2020
• AS2018
• FPAY2016
• SULP2016
• REMI2016
• AS2015
• I2013
• STCF2013
• AS2012
• AS�2012
• P2010
• F2010
• AS2010
• PD2009

Date	Code	Event	Description
Apr 12, 2021	LAPS	LAPSE FOR FAILURE TO PAY MAINTENANCE FEES	free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY
Apr 12, 2021	STCH	INFORMATION ON STATUS: PATENT DISCONTINUATION	free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362
Mar 05, 2021	FP	LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE	Effective Date: Mar 05, 2021
Oct 26, 2020	FEPP	FEE PAYMENT PROCEDURE	free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY
Oct 12, 2018	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BRISTOL COMPRESSORS INTERNATIONAL, LLC;REEL/FRAME:047951/0281 Owner name: KULTHORN KIRBY PUBLIC COMPANY LIMITED, THAILAND Effective Date: Oct 12, 2018
Oct 18, 2016	FPAY	FEE PAYMENT	year of fee payment: 4
Oct 18, 2016	SULP	SURCHARGE FOR LATE PAYMENT
Oct 14, 2016	REMI	MAINTENANCE FEE REMINDER MAILED
Jul 22, 2015	AS	ASSIGNMENT	free format text: CHANGE OF NAME;ASSIGNOR:BRISTOL COMPRESSORS INTERNATIONAL, INC.;REEL/FRAME:038278/0232 Owner name: BRISTOL COMPRESSORS INTERNATIONAL, LLC, VIRGINIA Effective Date: Jul 22, 2015
Mar 05, 2013	I	Issuance
Feb 13, 2013	STCF	INFORMATION ON STATUS: PATENT GRANT	free format text: PATENTED CASE
Jul 27, 2012	AS	ASSIGNMENT	free format text: RELEASE BY SECURED PARTY;ASSIGNOR:GENERAL ELECTRIC CAPITAL CORPORATION;REEL/FRAME:047979/0233 Owner name: BRISTOL COMPRESSORS INTERNATIONAL, INC., CONNECTIC Effective Date: Jul 27, 2012
Feb 03, 2012	AS�	SECURITY INTEREST	free format text: SECURITY AGREEMENT;ASSIGNOR:BRISTOL COMPRESSORS INTERNATIONAL, INC.;REEL/FRAME:027683/0174 Owner name: GENERAL ELECTRIC CAPITAL CORPORATION, AS AGENT, CO Effective Date: Feb 03, 2012
Oct 07, 2010	P	Published
Apr 06, 2010	F	Filing
Apr 06, 2010	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:TOLBERT, JOHN W., JR.;REEL/FRAME:024196/0238 Owner name: BRISTOL COMPRESSORS INTERNATIONAL, INC., VIRGINIA Effective Date: Apr 06, 2010
Apr 06, 2009	PD	Priority Date